<template>
    <div>
        <h1>
            头像更换
        </h1>
        <el-upload
            class="avatar-uploader"
            action="https://jsonplaceholder.typicode.com/posts/"
            :show-file-list="false"
            :on-success="handleAvatarSuccess"
            :before-upload="beforeAvatarUpload"
            :http-request="submit">
            <img v-if="imageUrl" :src="imageUrl" class="avatar">
            <i v-else class="el-icon-plus avatar-uploader-icon"></i>
        </el-upload>
    </div>
</template>

<script>
export default {
    created(){
    },
    data(){
        return{
            imageUrl: ''
        }
    },
    methods:{
        test(){

        },
        handleAvatarSuccess(res, file) {
            this.imageUrl = URL.createObjectURL(file.raw);
        },
        beforeAvatarUpload(file) {
            /*
            const isJPG = file.type === 'image/jpeg';
            const isLt2M = file.size / 1024 / 1024 < 2;

            if (!isJPG) {
            this.$message.error('上传头像图片只能是 JPG 格式!');
            }
            if (!isLt2M) {
            this.$message.error('上传头像图片大小不能超过 2MB!');
            }
            return isJPG && isLt2M;
            */
        },
        submit(item) {
            console.log(item.file)
            const fd = new FormData()//设置数据，参考https://www.cnblogs.com/gczmn/p/9437935.html
            fd.append('file', item.file)
            fd.append('fd', 2)
            this.$axios({
                method: "post",
                url: "http://localhost:8000/image/upload",
                headers: {
                    Authorization: sessionStorage.getItem('access-admin'),
                    'Content-Type': 'multipart/form-data'
                },
                data: {
                    file : item.file,
                    id : '2'
                }
                }).then((res) => {
                    console.log(res);
                    this.$message.success("上传头像成功！")
                }).catch(err => {
                    this.$message.error(err.data.message)
                })
        }
    }
}
</script>

<style>
  .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }
  .avatar {
    width: 178px;
    height: 178px;
    display: block;
  }
</style>